Evaluation of Brachiaria brizantha ecotypes under grazing in small plots.
An intense search for new cultivars amongat recently collected and introduced ecotypes from Africa is in effect since 1988, at the National Beef Cattle Research Center, of the Brazilian Agricultural Research Corporation (Embrapa Beef Cattle). After agronomic evaluation of a large collection, 21 ecotypes were pre selected for multilocational trial was thus to evaluate the persistence and carying capacity of these eight new Brachiaria brizantha ecotypes after two years of grazing. The experimental design was a randomized complete block with nine treatment and two replicates. The experimental area was divided into 18 paddocks of 1000m. The were grazed acording to a deferred flexible system. After two years. it was possible to selected four ecotypes, which were indicated for animal performance trials aiming at releasing at least one of them as a new cultivar in 2002.
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Artigo em anais e proceedings biblioteca |
| Language: | eng |
| Published: |
2006-02-22
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| Subjects: | Brachiaria Brizantha, Pastagem, Pastejo, Taxa de Lotação, Carrying capacity, Pastures, Stocking rate, |
| Online Access: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/325889 |
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| Summary: | An intense search for new cultivars amongat recently collected and introduced ecotypes from Africa is in effect since 1988, at the National Beef Cattle Research Center, of the Brazilian Agricultural Research Corporation (Embrapa Beef Cattle). After agronomic evaluation of a large collection, 21 ecotypes were pre selected for multilocational trial was thus to evaluate the persistence and carying capacity of these eight new Brachiaria brizantha ecotypes after two years of grazing. The experimental design was a randomized complete block with nine treatment and two replicates. The experimental area was divided into 18 paddocks of 1000m. The were grazed acording to a deferred flexible system. After two years. it was possible to selected four ecotypes, which were indicated for animal performance trials aiming at releasing at least one of them as a new cultivar in 2002. |
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